Spacewalk 2.0 for Oracle® Linux 6 Release Notes
E51125-11 August 2017 Oracle Legal Notices
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About this document
This document contains information about the Spacewalk 2.0 release available from Oracle. It describes the differences from the upstream version, includes notes on installing and configuring Spacewalk, and provides a statement of what is supported.
Document generated on: 2017-08-29 (revision: 4729) Table of Contents
Preface ...... v 1 Release Notes ...... 1 1.1 About Spacewalk 2.0 for Oracle Linux 6 ...... 1 1.2 Installing and Configuring a Spacewalk Server ...... 1 1.2.1 Oracle Linux Requirements ...... 1 1.2.2 Database Requirements ...... 1 1.2.3 Storage Requirements ...... 2 1.2.4 Network Requirements ...... 2 1.2.5 Setting up a Spacewalk Server ...... 3 1.2.6 Configuring Software Channels Using Oracle Yum Server ...... 5 1.2.7 Configuring Software Channels Using ULN ...... 6 1.2.8 Synchronizing Software Channels ...... 6 1.2.9 Creating Activation Keys for Spacewalk Clients ...... 7 1.3 Installing the Spacewalk Client and Registering Servers ...... 8 1.4 Known Issues ...... 9 1.4.1 Spacewalk Fails to Install Due to slf4j Package ...... 9 1.4.2 Tomcat Fails to Start After Spacewalk Configuration ...... 10 1.4.3 Spacewalk Client Fails to Install on Oracle Linux 5 ...... 10 1.4.4 Oracle Linux 5 Does Not Register with Spacewalk after Kickstart Installation ...... 10 1.4.5 PXE Booting Fails Due to Incorrect Host Name Configuration ...... 10 1.4.6 Memory Issues With Large Repositories or Data Sets ...... 10 1.4.7 Client Registration Issues ...... 10 1.5 Spacewalk Documentation ...... 11
iii iv Preface
The Spacewalk 2.0 for Oracle Linux Release Notes provides details of the Spacewalk 2.0 release available from Oracle.
Audience
This document is written for system administrators who want to use Spacewalk to manage Oracle Linux systems. It is assumed that readers have a general understanding of the Linux operating system.
Conventions
The following text conventions are used in this document:
Convention Meaning boldface Boldface type indicates graphical user interface elements associated with an action, or terms defined in text or the glossary. italic Italic type indicates book titles, emphasis, or placeholder variables for which you supply particular values. monospace Monospace type indicates commands within a paragraph, URLs, code in examples, text that appears on the screen, or text that you enter.
v vi Chapter 1 Release Notes 1.1 About Spacewalk 2.0 for Oracle Linux 6
There are no significant changes in the Oracle version of Spacewalk from the upstream project.
Minor changes include:
• Addition of Oracle Linux 6 GPG keys
• Addition of Oracle Linux repositories to the spacewalk-common-channels tool
• Addition of an Unbreakable Linux Network (ULN) plug-in for the spacewalk-repo-sync tool
• Branding changes 1.2 Installing and Configuring a Spacewalk Server 1.2.1 Oracle Linux Requirements
Oracle supports Spacewalk servers that are running on Oracle Linux 6 (x86_64).
You should install Oracle Linux 6 using the Minimal or Basic Server software set. If you select additional package groups during installation, you must remove the jta package before installing Spacewalk, as this package causes Spacewalk services to fail to start.
Only install Spacewalk using the packages provided by Oracle from the Oracle Yum Server repository at http://yum.oracle.com.
No third-party package repositories are required to install Spacewalk on Oracle Linux 6. All the required packages are available in the Oracle Linux Spacewalk repository.
As a minimum, a Spacewalk server should have 8GB RAM. If the Spacewalk server also runs the database for the Spacewalk data, this memory requirement is in addition to what is required to run the database. 1.2.2 Database Requirements
A database is required to store the Spacewalk data. The database options are:
• Oracle Database Express Edition (Oracle Database XE)
• PostgreSQL
Oracle only supports Oracle Database for use with Spacewalk. Oracle Database XE and PostgreSQL are not supported.
Oracle does not provide any tools for migrating from an unsupported database. Oracle Database Requirements
You must have an Oracle Database server installed and available before you install Spacewalk.
Only Oracle Database 11gR2, release 11.2.0.3 or later, is supported. Oracle Database 12c is not supported. To obtain the correct Oracle Database 11gR2 release, you must download the software from My Oracle Support (MOS) at https://support.oracle.com.
1 Storage Requirements
Documentation for Oracle database is available at http://www.oracle.com/pls/db112/homepage.
The database must be configured as follows:
• The database must use the AL32UTF8 character set.
• The database must have a user named spacewalk.
• The spacewalk user must have the CONNECT and RESOURCE roles.
• The spacewalk user must have the ALTER SESSION, CREATE SYNONYM, CREATE TABLE, CREATE TRIGGER, CREATE VIEW and UNLIMITED TABLESPACE system privileges.
To create the spacewalk user with a password of "password" using SQL, the following SQL*Plus commands can be used:
SQL> create user spacewalk identified by password; SQL> grant connect,resource to spacewalk; SQL> grant alter session, create synonym, create table, create trigger, create view to spacewalk; SQL> grant unlimited tablespace to spacewalk;
To connect to an Oracle Database, Oracle Instant Client release 11.2.0.3 or later must be installed on the Spacewalk server. The Spacewalk server configuration fails if the Instant Client is missing. Oracle recommends that you install the latest 11gR2 release of the Instant Client. You can download the Instant Client from:
http://www.oracle.com/technetwork/topics/linuxx86-64soft-092277.html
The following are the required packages:
• Instant Client Package - Basic
• Instant Client Package - SQL*Plus
Once you have installed the Oracle Instant Client, you must add the library path to ldconfig as follows:
# echo /usr/lib/oracle/11.2/client64/lib > /etc/ld.so.conf.d/oracle-instantclient11.2.conf # ldconfig
1.2.3 Storage Requirements
To ensure that errata mapping is maintained for all versions of each package, Spacewalk mirrors all available versions of all available packages. As a result, the storage requirements for a Spacewalk server can be significant, based on the number of major versions and architectures you chose to support. As a guide, the Oracle Linux binary repositories require approximately 50GB for each architecture, with an extra 30-40GB required for source packages.
Caution
Packages are never removed from Oracle Linux repositories, so the space required for each repository only ever increases. You should actively monitor the available disk space on the Spacewalk server. 1.2.4 Network Requirements
You must configure the Spacewalk server with a fully-qualified domain name (FQDN). Spacewalk does not consider .local and .localdomain to be valid domain names. Clients must be able to resolve the
2 Setting up a Spacewalk Server
FQDN in DNS (forward and reverse lookups). If these conditions are not met, PXE booting does not work and clients do not register with the Spacewalk server.
The following table shows the required network ports depending on the configuration of the Spacewalk server.
Port and Protocol Purpose 69/udp tftp for PXE provisioning support 80/tcp Spacewalk web access 443/tcp Spacewalk web access 5222/tcp Spacewalk client push support 5269/tcp Spacewalk proxy push support
If the Spacewalk server needs to connect though a proxy, you can configure the proxy in the following places:
• The /etc/rhn/rhn.conf file.
• The Spacewalk web interface.
Go to Overview, then Configure Spacewalk, and then General. 1.2.5 Setting up a Spacewalk Server
1. Ensure that the jta package is not installed and prevent it from being installed when you install Spacewalk.
To check if the jta package is installed:
# yum list installed | grep jta
To remove the jta package:
# yum remove jta
To prevent the jta package from being installed when you install Spacewalk, either disable the Oracle Linux 6 Add ons [ol6_addons] channel, or add the jta package to the exclude directive in the yum configuration file /etc/yum.conf, for example:
exclude=jta*
2. Enable access to the Spacewalk Server repository.
Spacewalk is installed from the Oracle Yum Server server at http://yum.oracle.com.
Download the latest the Oracle Yum Server repository configuration file (http://yum.oracle.com/public- yum-ol6.repo) to the yum repositories directory (by default /etc/yum.repos.d) and enable the ol6_spacewalk20_server repository in that file.
Alternatively, you can create a yum repository configuration file, for example /etc/yum.repos.d/ spacewalk20.repo, with the following content:
[ol6_spacewalk20_server] name=Spacewalk Server 2.0 for Oracle Linux 6 ($basearch) baseurl=http://yum.oracle.com/repo/OracleLinux/OL6/spacewalk20/server/$basearch/
3 Setting up a Spacewalk Server
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle gpgcheck=1 enabled=1
3. Install Spacewalk.
# yum install spacewalk-oracle
4. Configure Spacewalk.
If you are using an Oracle database, either on the same server or on a remote server, use the following command:
# spacewalk-setup --disconnected --external-db
Otherwise, use the following command:
# spacewalk-setup --disconnected
The following example shows an interactive configuration:
# spacewalk-setup --disconnected --external-db * Setting up Oracle environment. * Setting up database. ** Database: Setting up database connection for Oracle backend. Database service name (SID)?
4 Configuring Software Channels Using Oracle Yum Server
* Setting up Cobbler.. Processing /etc/cobbler/modules.conf `/etc/cobbler/modules.conf' -> `/etc/cobbler/modules.conf-swsave' Processing /etc/cobbler/settings `/etc/cobbler/settings' -> `/etc/cobbler/settings-swsave' cobblerd does not appear to be running/accessible Cobbler requires tftp and xinetd services be turned on for PXE provisioning functionality. Enable these services [Y]? cobblerd does not appear to be running/accessible * Restarting services. Installation complete. Visit https://spacewalk.domain.com to create the Spacewalk administrator account.
1.2.6 Configuring Software Channels Using Oracle Yum Server
Oracle Linux channels can be configured using the spacewalk-common-channels tool provided in the spacewalk-utils package. This tool can automatically configure the required software channels, public yum repositories, GPG keys and activation keys for both Oracle Linux 5 and 6.
The following channels can be created using the spacewalk-common-channels command:
• For Oracle Linux 6 (i386 and x86_64):
oraclelinux6 (base channel)
oraclelinux6-addons
oraclelinux6-uek
oraclelinux6-mysql
oraclelinux6-playground
oraclelinux6-spacewalk20-client
oraclelinux6-spacewalk20-server
• For Oracle Linux 5 (i386 and x86_64):
oraclelinux5 (base channel)
oraclelinux5-addons
oraclelinux5-oracle-addons
oraclelinux5-unsupported
oraclelinux5-uek
oraclelinux5-spacewalk20-client
For example, to create all the 32-bit and 64-bit software channels for Oracle Linux 6, install the spacewalk-utils package and then run the spacewalk-common-channels tool, as follows:
# yum install spacewalk-utils # spacewalk-common-channels -v -u
Use the spacewalk-common-channels -h command to see full usage information.
5 Configuring Software Channels Using ULN
1.2.7 Configuring Software Channels Using ULN
The Oracle version of Spacewalk contains ULN plug-in for the spacewalk-repo-sync tool. The plug- in enables you to synchronize ULN channels directly into Spacewalk channels without requiring the Spacewalk server to be registered with ULN.
Note
The ULN plug-in was not included with the initial release of Spacewalk from Oracle. Depending on the configuration of your Spacewalk server, you might need to update the Spacewalk packages.
To configure the ULN plug-in, edit the /etc/rhn/spacewalk-repo-sync/uln.conf file and add login credentials for ULN. By default, this file is read-only by root.
[main] username=
After you edit the configuration file, ensure that the file permissions are read-only (0400) by root. This is an important security step to protect the ULN credentials.
Once the ULN plug-in is configured, you create the Spacewalk software channels and repositories in the normal way using the Spacewalk web interface. When you specify the URL for a ULN repository, use a URL in the following format:
uln:///
Note
The URL must contain three forward slash (/) characters. For example:
uln:///ol6_x86_64_latest
For example:
uln:///ol6_x86_64_latest
You can get a list of available ULN channel labels by logging in to ULN (https://linux.oracle.com) and selecting the Channels tab. 1.2.8 Synchronizing Software Channels
Once you have configured the software channels, you can synchronize the software either by performing an immediate manual synchronization or by scheduling a recurring synchronization job.
As a minimum, Oracle recommends that you update the Oracle Linux 5 and Oracle Linux 6 latest channels daily.
The initial synchronization of the Oracle Linux 5 and Oracle Linux 6 channels can take several days to complete. Oracle recommends that you perform an initial manual synchronization to populate the channels, and then configure a recurring job to keep them updated.
Synchronizing Software Channels Using the Spacewalk Web Interface
1. Go to Channels, then Software Channels, and select the required channel.
6 Creating Activation Keys for Spacewalk Clients
2. Select Repositories, and then Sync.
3. Synchronize the software.
To perform an immediate manual synchronization, click the Sync Now button.
To schedule a recurring synchronization job, select the preferred schedule, and click the Schedule button.
Synchronizing Software Channels Using the Command Line
Use the spacewalk-repo-sync tool to synchronize software channels. You must be root to use this tool. You can run the tool manually or in a cron job. See the man page for spacewalk-repo-sync for full details of the options. If you run the tool in a cron job, remember to include the -q or --quiet option.
In order to synchronize a channel, the key information is the channel label and the URL of the repository. Use the spacewalk-repo-sync -l command to display this information.
To synchronize a channel with a ULN repository, use the following format:
# spacewalk-repo-sync -t uln -c
For example:
# spacewalk-repo-sync -t uln -c oraclelinux6_x86_64_latest -u uln:///ol6_x86_64_latest
To synchronize a channel with an Oracle Yum Server repository, use the following format:
# spacewalk-repo-sync -c
For example:
# spacewalk-repo-sync -c oraclelinux6_x86_64_latest \ -u http://yum.oracle.com/repo/OracleLinux/OL6/latest/x86_64/ 1.2.9 Creating Activation Keys for Spacewalk Clients
After you have configured and synchronized the software channels, you must create an activation key so that servers can register to those channels.
Create an activation key for each base channel and architecture you configured. If you configured all the channels, you need four activation keys, two for Oracle Linux 5 (i386 and x86_64) and two for Oracle Linux 6 (i386 and x86_64).
You synchronize software as follows:
1. In the Spacewalk web interface, go to Systems, and then Activation Keys.
2. Click Create New Key.
Oracle recommends that you do not use the generate function to create an activation key. Instead, create a key with a label that is easy to understand, for example based on the version number and architecture (oraclelinux6-x86_64), or based on the server type (webserver or appserver). Spacewalk automatically adds a number to the activation key label. For example, if you select oraclelinux-x86_64 as the label, the key that is actually created might be called 1-oraclelinux-x86_64. This enables you to create multiple activation keys for the same base channel, each with different configuration options. The name you use is presented during Spacewalk client registration and creating your own key labels helps you to select the right key.
7 Installing the Spacewalk Client and Registering Servers
1.3 Installing the Spacewalk Client and Registering Servers
Oracle supports only Oracle Linux servers as Spacewalk clients. You can use Spacewalk to manage Fedora-based clients and other systems by using upstream client binaries and repositories but Oracle does not provide support for these clients.
Oracle provides Spacewalk client packages for Oracle Linux 5 and 6 for both i386 and x86_64 architectures.
If the Spacewalk Client channel provided by Oracle is mirrored on the Spacewalk server, the Spacewalk client is installed automatically on servers that are provisioned from Spacewalk. The Spacewalk Client channel can be configured using the spacewalk-common-channels command, as described in Section 1.2.6, “Configuring Software Channels Using Oracle Yum Server”.
Starting with Oracle Linux 7 Update 1, you do not need to install the Spacewalk client before registering a system with a Spacewalk server. You can simply register the system using the rhnreg_ks command. If you do this, Oracle recommends installing the full Spacewalk Client after registration to support all of the features provided by Spacewalk, which include provisioning and auditing.
For an Oracle Linux server that is not yet connected to Spacewalk, you install the Spacewalk client and register the server, as follows:
1. Enable access to the Spacewalk Client repository.
Download the latest the Oracle Yum Server repository configuration file from http://yum.oracle.com/ and save it to the yum repositories directory (by default /etc/yum.repos.d). Edit the configuration file and enable the repository:
• Oracle Linux 7: enable the ol7_spacewalk22_client repository.
Note
For Oracle Linux 7, you must use the Spacewalk 2.2 client to connect to a Spacewalk 2.0 server.
Alternatively, you can create a /etc/yum.repos.d/spacewalk22-client.repo file with the following content:
[ol7_spacewalk22_client] name=Spacewalk Client 2.2 for Oracle Linux 7 ($basearch) baseurl=http://yum.oracle.com/repo/OracleLinux/OL7/spacewalk22/client/$basearch/ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle gpgcheck=1 enabled=1
• Oracle Linux 6: enable the ol6_spacewalk20_client repository.
Alternatively, you can create a /etc/yum.repos.d/spacewalk20-client.repo file with the following content:
[ol6_spacewalk20_client] name=Spacewalk Client 2.0 for Oracle Linux 6 ($basearch) baseurl=http://yum.oracle.com/repo/OracleLinux/OL6/spacewalk20/client/$basearch/ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle gpgcheck=1 enabled=1
• Oracle Linux 5: enable the ol5_spacewalk20_client repository.
8 Known Issues
Alternatively, you can create a /etc/yum.repos.d/spacewalk20-client.repo file with the following content:
[ol5_spacewalk20_client] name=Spacewalk Client 2.0 for Oracle Linux 5 ($basearch) baseurl=http://yum.oracle.com/repo/OracleLinux/OL5/spacewalk20/client/$basearch/ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle gpgcheck=1 enabled=1
2. (Oracle Linux 5 only) Remove the pirut, up2date, and up2date-gnome packages.
Use the rpm -e --nodeps command to remove these packages.
In your Oracle Linux 5 Kickstart profiles in Spacewalk, exclude these packages from installation by inserting a dash character (-) in front of the package name in the Kickstart profile on the Software, Package Group screen, for example:
@Base -pirut -up2date -up2date-gnome
3. Install the Spacewalk client.
Use the following command to install the Spacewalk client on all platforms:
# yum install rhn-client-tools rhn-check rhn-setup rhnsd m2crypto yum-rhn-plugin
This command replaces the existing packages and deletes a registered server from ULN.
4. Register the server with Spacewalk using the rhnreg_ks command.
Before you can register a server, you must have already created a client activation key, as described in Section 1.2.9, “Creating Activation Keys for Spacewalk Clients”. If enabled, a universal default key can be used. However, using a specific activation key is better.
# rhnreg_ks --serverUrl=http://spacewalk_server/XMLRPC --activationkey=activation_key
For Oracle Linux 7 Update 1 and later systems that do not have the Spacewalk Client installed, you must provide a user name that is authorized to register the system and the user's password in plain text, in addition to the activation key:
# rhnreg_ks --serverUrl=http://spacewalk_server/XMLRPC --username=user \ --password=passwd --activationkey=activation_key
5. Disable access to the Spacewalk Client repository.
Disable Spacewalk Client repository in the Oracle Yum Server repository configuration file, or delete your Spacewalk Client .repo file. 1.4 Known Issues 1.4.1 Spacewalk Fails to Install Due to slf4j Package
In some circumstances, the Spacewalk installation can fail if the slf4j (Simple Logging Facade for Java) package is installed. The workaround is to remove the slf4j package. Be aware that Eclipse depends on this package, so you either have to uninstall Eclipse or remove the package with the rpm -e --nodeps slf4j command.
9 Tomcat Fails to Start After Spacewalk Configuration
1.4.2 Tomcat Fails to Start After Spacewalk Configuration
If the Tomcat service (tomcat6) fails to start after the initial configuration of Spacewalk, check that the geronimo-jta-1.1-api package is installed. If you installed Oracle Linux using a software set other than Minimal or Basic Server, the jta package might be installed on the system and the presence of this package prevents the geronimo-jta-1.1-api package from being installed. The geronimo- jta-1.1-api package is required to ensure that all the Spacewalk services start correctly. If the geronimo-jta-1.1-api package is missing from your system, remove the jta package, install the geronimo-jta-1.1-api package, and then shutdown and reboot the system. 1.4.3 Spacewalk Client Fails to Install on Oracle Linux 5
The Spacewalk client conflicts with the up2date client installed by default for connectivity to the Unbreakable Linux Network. Before you install the Spacewalk client for Oracle Linux 5, remove the up2date and up2date-gnome packages manually using the rpm -e --nodeps command. 1.4.4 Oracle Linux 5 Does Not Register with Spacewalk after Kickstart Installation
If Oracle Linux 5 does not register with Spacewalk after Kickstart installation, add -up2date and - up2date-gnome to the Kickstart profile on the Software, Package Group screen. 1.4.5 PXE Booting Fails Due to Incorrect Host Name Configuration
If the Spacewalk server was installed without a fully-qualified domain name (FQDN), or a name that cannot be resolved in DNS, Spacewalk creates invalid PXE boot configuration files.
You can validate that Cobbler is configured correctly by checking that the IP address used in the ks= parameter in the /var/lib/tftpboot/pxelinux.cfg/default file is correct.
To reconfigure a Spacewalk server after installation:
1. Edit the /etc/cobbler/settings file and change all instances of incorrect host names, such as localhost.localdomain.
2. Restart Spacewalk by running spacewalk-service restart.
3. Resynchronise Cobbler by running cobbler sync. 1.4.6 Memory Issues With Large Repositories or Data Sets
When building repository metadata, Spacewalk can fail with Out of Memory issues. This is caused by the default Java memory settings for the Taskomatic daemon. The solution is to increase the JVM memory settings in the configuration file for the Taskomatic daemon /usr/share/rhn/config-defaults/ rhn_taskomatic_daemon.conf.
Similar memory issues can also occur in the web interface if you have big data sets, such as a large number of servers or packages. The solution is to increase the Tomcat memory limits in the /etc/ sysconfig/tomcat6 file. Edit the JAVA_OPTS environment variable, and increase the -Xms (the start or initial amount of memory) and -Xmx (the maximum amount of memory) parameters. 1.4.7 Client Registration Issues
During installation, Spacewalk generates a CA certificate. This certificate is used in the client registration process. If a Spacewalk server does not have a valid fully-qualified domain name (FQDN), Spacewalk
10 Spacewalk Documentation
does not generate a valid CA certificate. Spacewalk does not consider .local and .localdomain to be valid domain names. 1.5 Spacewalk Documentation
Release notes for the Spacewalk project can be found at:
https://fedorahosted.org/spacewalk/wiki/ReleaseNotes20
User documentation for the Spacewalk project can be found at:
https://fedorahosted.org/spacewalk/wiki/UserDocs
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